MHI e49 error code

Hi guys,

I have the above error code showing on an MHI fd multi split system.

I found a melted neutral in the rotary switch that has been sorted and checked all concetions for the system. I assumed the fault code was correct but have now found that it could also be a low pressure fault? And guess what my gauges were on a site bloody miles away!!! typical Monday.

I have not done much work on MHI systems before so just wondering if there is anything I should be looking for thats a common fault?

kx4 & kxr4 series e49 is low pressure.

FD Split its showing as low voltage.

Cheers guys